Hi
I have variable A_B=alpha
also var1="A"
var2="B"
I want to retrieve the value alpha using var1 and var2 , somthing like
echo ${${var1}_${var2}} that works. Obviously this is receiving syntax
error
Hi
I have variable A_B=alpha
also var1="A"
var2="B"
I want to retrieve the value alpha using var1 and var2 , somthing like
echo ${${var1}_${var2}} that works. Obviously this is receiving syntax
error
Use this:
$ A_B=alpha
$ var1="A"
$ var2="B"
$ eval echo \${${var1}_${var2}}
alpha
try with eval:
eval echo \${${var1}_${var2}}
V=${var1}_${var2}
$ echo ${!V}
In which shell should this work? I tried it with
Works in bash from version 2
Strange, it works now, but it did not work the first time I tried (empty output). Must have mistyped something.
Anyway, thanks for the clarification.